Fitting for electroliers.



K. KORNBAU.

HTTlNG FOR ELECTROLIERS.

APPLICATION FILED 0m. 3. 1916.

1 ,244 ,6 1 5 Patented Oct. 30, 1917.

KENNARD KORNBAU, OF NEW DDR1, NEW YORK.

FITTING FOB ELECTROLIERS.

Specification of Letters Patent.

Application filed October 3, 1916. Serial No. 123,469.

To all whom it may concern:

Be it known that I, KENNARD KORNBAU, a citizen of the United States, residing at New Dorp, county of Richmond, and State of New York, have invented certain new and useful Improvements in Fittings for Electroliers, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to improvements in electroliers and particularly to a fitting for electroliers such as electric candelabras.

The object of the invention is to provide a fitting, constituting a part of an electrolier and combining in one complete fitting a socket for an electric lamp, terminalcorr nectors readily accessible for the insertion of lead wires, and a switch so constructed as to be operated from the exterior of the fitting to open and close the circuit to the lamp. This switch, of course, will be of the usual cut-out type as distinguished from a mere push button which cuts the circuit as soon as pressure is removed from it. More specificallyconsidered, the object of my invention is 'to provide an imitation candle which can be sold on the market as an article independent of the other parts of the electrolier, this imitation candle having a lamp socket at one end, terminal connectors at the other end readily accessible for the insertion of lead wires and a switch within the imitation candle and having an operating,memher extending .to the outside. The fitting.

hereinbefore referred to, whether in the form of an imitation candle or some other form, is, intended to be connected with other parts of the electrolienand, therefore, in certain forms of the invention the fitting may be provided with means for connecting it to the'other parts of the electrolier.

The invention consists in the features, details of construction and combination of parts which will first be described in connection with" the drawings illustrating the best embodiment of the invention, and then more particularly pointed out.

In the drawingsv Figure 1 is an elevation partly in section of an electric candelabra embodying one form of my invention; 0

Fig. 2, an enlarged sectional view of the ings, wherein the new fitting is in the form of an imitation candle, this fitting being arranged to constitute a part of an electrolier in the form of an electric candelabra. It to be understood,-however, that the invention is not limited to this particular embodiment but'can be constructed in other forms.

Referring to the drawings and particularly to Fig. 1, A is a suitable base or support constituting part of an electrolier and, in the present instance, formed as a candlestick. .The upper end of this candle-stick has a socket portion into which the fitting may be inserted. The fitting, indicated at B,-comprises a member having its exterior arranged to form a part of the exterior of the electrolier. In the best embodiment of the. invention, this member is of insulating material. The fitting has a suitable socket for an incandescent lamp arranged at one end, the drawing showing the lamp C in placein the socket; While the lamp socket carried by thefitting may be variously constructed, I have invented a socket not only particularly adapted for use in the fitting forming the subject-matter of the present invention, but also having features of importance in sockets for use in other electrical apparatus. This particular socket has an outer member formed of a coil of wire, thev upper turns of which are sloped and arranged at such a pitch as toreceive the screw Patented Oct. 30, 1917.

tended downward transversely of the turns and is suitably connected to each turn which it crosses, as, for example, by'soldering or welding it thereto, as, for example, by electrically welding it.

In the drawings, the sloping turns of the coil are indicated at 1, the transversely arranged bottom turn at 2 and the downward extending terminal rod or wire at 3. In the best embodiment of the invention, the turns are also held at another point in a suitable way, as, for example, by connecting them by a suitable element, such as a strip, wire or rod, 1, soldered'or welded to them and arranged opposite the downward extending terminal 3.

The upper end of the fitting is bored to form a recess into which the coiled outer socket member fits snugly, the bottom turn 2 restingagainstthe bottom of the recess. The wall of the recess is grooved to receive the terminal rod 3 and the rod 4, as will be clear from Figs. 2 and 41. The bottom of the socket is formed of a suitable centrally arranged. metallic member arranged to come in contact with the central terminal of the lamp. In the example shown, the'central terminal is formed as a screw as indicated at 5. The other end of the fitting is provided with a pair of terminal connectors 6 and 7, respectively, these being shown as binding posts into which suitable lead wires L and L may be inserted and clamped by binding screws 8 and 9. The outer socket. member l-is electrically connected to one of the terminal connectors, as, for example, by the rod 3, leading from the outer socket member. This rod 3 extends longitudinally through a hole in the fitting B, and is screw threaded into the terminal connector 6. By turning" the terminal connector 6, it may be unscrewed from the rod 3, and the latter, together with the coiled portion, may be readily withdrawn-from the fitting. The fitting B isprovided with a suitable switch recess or chamber, in the present instance formed as a transverse cylindrical o ening, this recess or opening beln designe to receive a suitable switch'mec anism. In the present example, the switch mechanism comprises an innerstationary disk 10, an outer stationary disk 11, a rotatable disk 12, located intermediate the two stationary disks, and suitable means for rotating the movable disk. In the present instance, the movable disk 12 is constructed of insulating material recessed to receive; a fork 12 formed on the end of a stud '12", rotatable in an openin in the outer stationary disk 11, the outer end of this stud being screw threaded to receive a knob 13 which projects exteriorly of the outside surface of the fitting and serves as an operating member for the switch. The disks 10 and 11 are of conducting material.

- The inner stationary di k is connected to'the central terminal 5 of the lamp socket, as, for example, by a rod 14: extending longitudinally through a hole in the fitting and screw threaded into a hole in the upper edge of the inner stationary disk 10. The upper end of this rod is suitably secured to the screw 5, as, for example, by threading it onto the same and soldering it in place, so that, by rotating the screw, the rod 14 may be unscrewed from the disk 10 and withdrawn from the fitting at the upper end. The inner stationary disk 10 is slightly spaced away from the movable disk 12' and is provided with yielding means arranged to make an electrical contact with the movable member in one position of the latter. In the present example, the yielding circuit making and breaking means comprises a pair of pins 10 slidable in transverse openings in the disk 10 and riveted. to a spring 10*, which is suitably secured to the disk 10, as, for example, by a rivet 10. The disk 10 is cut away, as shown, between the sockets for the pins 10 and rod 3. The inner faces of the ends of the fork 12 are provided with small indentations arranged to receive the ends of the spring pins 10*, as shown in Figs. 5 and 8. When the movable disk is rotated to bring the indentations in line with the spring pins 10*, the latter make contact with the metallic fork, thus establishing a circuit from the outer stationary disk 11 to the inner stationary disk 10. By rotating the movable member 12 by the knob 13, the spring pins 10 ride up on the inner insulating surface of the movabledisk and thereby break the circuit from the outer stationary disk to the inner stationary disk. The outer stationary disk 11 is in electrical communication with the remaining terminal connector, as, for example the connector 7. In the present example, this connection is made by means of a rod 15 extending longitudinally through a holein the .fittlng and screw threaded into the bottom of the outer stationary disk 11. The other end of the rod 15 is connected to the connector termi- :nal 7 in such a way that by turning said connector the rod may be unscrewed from the disk 11 and withdrawn from the fitting in a downward direction. The parts thus far described may be assembled as follows The inner stationary disk ,10 is inserted in the cylindrical opening in the fitting. The "rod 14., secured to the screw head 5, is inserted from the top of the fitting and the disk 10 moved until its screw threaded open ing comes in line with said rod, whereupon the latter may be screwed down, thus clamp ing the disk 10 in place. The movable mem- "ber 12, together with the outer stationary fitting and when the outer stationary disk 11 is properly positioned, the rod 15 may be screwed into place in said outer stationary disk. The coiled socket member, together with the rod 3, are inserted by pushing the rod down the respective hole in the fitting until the bottom turn 2 comes in contact with the bottom 'ofthe bore in the fitting, whereupon the terminal connector 6 is screwed. onto the end. of the rod 3. This securelyclamps the coiled socket member in lace. The fitting is now ready for the market and is capable of use with: a wide variety of electroliers. While it may be inserted into a socket in an ordinary candelabra or other similar support and held in place by friction, it is advantageous to provide the fitting with suitable means for connecting it to other parts of the electrolier.

'In the present example, the fitting is shown as provided with a flange b on the lower end arranged to be engaged by a collar 6' which is interiorly screw-threaded and ar-.

ranged to en age the screw thread at the upper end. of t e cooperating member of the electrolier. In the embodiment shown, this coacting member is in the form of a candlestick having an enlarged socket portion to receive the flange b. a This socket is lined with insulating material, as indicated at 6 It will be obvious that in order to assemble the fitting with the coacting member of the electrolier, it is only necessary to run the lead wires through the coacting member and connect their ends to the connector terminals 6 and 7. The fitting is then inserted in the socket of the coacting member and, where the construction is as shown in the drawing, the collar 6' may be screwed down to clamp the flange 6 tightly to the said coacting memher. The lamp may then be screwed in place at the upper end and the electrolier is com+ plete. When the fitting is in the form of an artificial candle, the member constituting the pillar or support for the other parts may advantageously be made of refractory insulating; material such, for example, as porcelain or suitable glass, the exterior of the pillar having the appearance of an ordin'ary candle, thus constituting apart of the exterior of the electrolier. The specific embodiment of the invention shown 1n the drawin s is particularly advantageous when the pilfir is of. porcelain or glass, since it permits a convenient andready manufacture of the same in the desired shape to receive within it the conductive parts.

In describing the switch hereinbefore, it has been pointed out that the movable member 12 is provided with a fork 12 having indentations in its ends to receive the spring pressed pins 10. Theseindentationsserve to hold the-movable member in the closed position of the switch. The insulated disk 12 may have its inner face provided with similar indentations, as indicated at 12, Fig. 6, so that when the movable member is rotated to cut the circuit, the spring pins 10* will engage the indentations 12 and thus tend to hold the switch in its open position.

What is claimed is:

1. A fitting for electroliers comprising a member of refractory, insulating material having a socket recess at one end and a cylindrical switch recess open to the exterior of said insulating member, a lamp socket in the. socket recess and comprising a central member and an outer member, an inner stationary disk in the switch recess and provided with a yielding contact member, a conducting and holding member, extending from said inner stationary disk 'to the central member of the lamp socket, an outer stationary disk located in the switch recess, a connector for a lead Wirehaving a conducting-and holding member arranged to engage said outer stationary disk, a movable member of insulating material located between said stationary disks and provided with conducting means arranged toengage the yielding contact member .ofthe inner stationary disk, means extending outside the fitting and arranged to operate the movable disk, and a connector for a lead wire in electrical communication with the outer member of the lamp socket.

2. An electric lamp socket comprising a member of insulating materialhavln a circular recess, an outer socket member ormed of a coil of wire having turns arranged to engage the screw thread on an electric lamp, the terminal of the upper turn being united to a conducting member extending transversely of the other turns and connected thereto, said coil bein located in the circular recess in the insu ating member, means for making an electric connection to said conducting member, and means for making a contact with the central terminal of a lamp.

3. An electric lamp socket comprising a member of insulating material having a circular recess, an outer socket member formed of a coil of wire having turns arranged to engage the screw thread on an electric lamp, the terminal'of the up er turn being united to a conducting mem er extending transversely of the other turns and connected thereto, said coil being located inthe circular recess and having a bottom. turn ar- &

end an electric light socket located inside said socket recess, a pair of connectors for leadires extending beyond the fitting at the flanged end thereof, circuit connections 5 within the body of insulating material and arranged to complete a circuit including the lamp socket and the connectors, and a screwelectrolier. 1

In testimony whereof, I have hereunto set my hand.

KENNARD KORNBAU. 

